Fountain pen



Feb-2K, 1950 F. Y. KURIYAMA FOUNTAIN PEN Filed Sept. 21, 1946 Inventormir /lama alllllllllllllllllll' m 2 m Y F Patented Feb. 21, 1950 FredYoshiharu; Kuriyama; Honolulu,

Territory of Hawaii Applicationseptem'ber 21, 1946, *Serial No;698,455"- s claimst- (Cl. 120-42m3) My inventionrel'ates to improvementsin fountain pens.

The primary object of the invention is toi-provide a fountain pen withsimply constructed, inexpensive means operative by: a finger of a handgrasping the pento eitherhouse the -pen point for'protection purposes,or, exposesaidpen point for writingpurpo'ses.

Another object isto -providea fountain pen with means of the characterand for the purpose above set forth which is operative byLeasy, lightpressure on the pen clip."

To the accomplishment of the above-and-subordinate objects appearing, apreferred embodiment of myinvention has been illustrated in theaccompanying drawingse't forth in-detail in the succeeding'des'cription,and defined in the claims appended i thereto.

In said drawings:

Figure 1 is aview in perspective illustratingzthe manner in whichtheclip-forming bar, out'er.rand inner caps, and-spreader member-mayb'wdetached as a unit from thepen barreli Figure 2 is afragmentary'viewpartlyin longi tudinal section andpartly'in'side*elevati'on drawn to an enlarged scale-and illustratingthe parts in normal position with the inner cap housing the pen point.-

Figure-3 is a similar view with the parts in the rearward limit ofmovement thereof and the sections of the inner cap opened toexpose the.pen point.

Figure 4 is a view in perspective of the parts disassembled.

Figure 5 is a fragmentary view in plan drawn to a smaller scale;

Figure 6' is arfragmentary" view in-transverse section drawn to a largerscale and illustrating the manner in whichithe sections of the inner capare hinged.

Referring to the drawing by numerals accord ing to-my invention afountain pen is provided comprising a barrel l having a slightlyreduced,externally threaded, front end section- 2 fixed therein, in-anysuitable-manner, with a cylini drical, reduced neck 2extending-forwardly.therefrom along the axis of thebarrel l and in whichthe usual pen point 4 is suitably fixed, together with the usual inkfeeder bar 5.

An outer cap 6 having the form of a fiat nosed bullet is threaded ontothe front section 2, and which is open at the front end 1 thereof, andextends forwardly of the neck 3, but with the pen point 4 and feed bar 5extending out of said front end thereof in the axis of the same. The

2 outer'cap': 6' is provided in one side'thereof'with a longitudinalslot 8 extending from the rear end of said-cap-toa central cross slot=9in said cap into which the "front end of theslot 8 opens in the centerthereof. An internal-,- annular shoulder ID is provided in the outercap6 adjacent the rear-end thereof and spaced forwardlyof the section 2for a-purpose presently clear.

An inner' cap 5 :i i of forwardly tapering -form; with a roundedfront'endl2, is' providedin the outer-"cap 6 to be slid endwiseforwardlyiand rearwardly into and out et the front end 1 ofsaidcap't,"respectively; The inner cap ll is split longitudinally into a"pair *of' half sections l3, l4 adapted'to mate side'by side, inedge-toedge closed relation, and which are hinged at the rearends-thereof, and at confrontingside edges on one sideofv-the cap,bypins 'l5; to the front end of a rearwardlyextendingspring bar-I 64 Thespring bar I G'is provided with :an-out-turned, right-angled, rear. endI! formed Witha-reduced terminal 'l8" adapted to extend out of the outercap s' through the slots 8,- 9 and to slidably' fit in the slot 9. Therearend ll inwardly'of the terminal l8'is wider than the slot 8 anddesigned to extend through the slot 9 and block sliding of the terminal18 out of theslot 9 into the front end of said slot B," and is alsodesigned to snap behind the shoulder Ill, all for a purpose presentlyseen.

A clip forming bar 'l9 is-fixed, in'any suitable manner, adjacent itsfront 'end, on the terminal l8 atarightangle'to said end H to extendalongside the'outer cap fi andflbarreli with its'front end portionnormally spaced from the outer 'cap 6 by the spring bar I6.

A -tubular spreader m'emb'er 20 surrounds the neck-3,: within the outercap 6, with a rear, annular flange -2! of right angled cross'sectionclamped between the" shoulder" Iii-and the-front end section 2 ofthe'barrel l and Whichfits-part Way into the inner cap II with anouter'end, external, circumferentialiflange 22 flush with-the front endI of the-out'ercap 6. The' spreader member 20 has a tapered 1 front endportion 2 3 and the inner cap I I slides forwardly and rear.- wardlyon-said portion 23 and on the flangef22. Inthe rearward sl-idingmove'ment of the inner cap II, the sections 13, I4 thereof are spreadapart by said portion 23 and the flange 22. This spreading apart oropening of the sections l3, l4 occurs as the inner cap H is movedrearwardly from a normal forward position presently explained.

Referring now to the use and operation of the housing the pen point 4,all as shown in Figure i:

2. In this position of the parts, the rear end I! of the spring bar Itextends across the front end of the slot 9 and prevents rearwardmovement of the inner cap H so that said cap is locked in the describednormal position there-' of in which the pen point 4 is completelyhoused. Now, by pressing the clip-forming bar. IS, inwardly, inopposition to the spring bar 16, by means of a finger of a hand holdingthe pen, said end I! may be moved from in front of the slot 8 to unlockthe inner cap H, after which the clip-forming bar 19 may be movedrearwardly by said finger with the terminal l8 of the spring bar l6sliding in the slot 8 into a normal limit of movement established byengagement of said end ll of the spring bar It with the flange 21 of thespreader member 25:. Thus, the inner cap H may be slid rearwardly into acorresponding limit of rearward movement. In such rearward movement ofthe inner cap H, the sections l3, I4 are spread open by the spreadermember 20 to expose the writing portion of the pen point 4. In therearward limit of movement of the clip-forming bar 19, and the springbar It,

the end ll of said bar 16 snaps behind the flange l and locks the partsin the rearward limit of movement thereof and with the sections 63, i lopen and the pen point 4 exposed and extending forwardly of the frontend 12 of said inner cap H. The clip-forming bar 19 may be used in theusual manner, as will be clear. As shown in Figure l, by unscrewing theouter cap from the section 2, the clip-forming bar 19, inner cap H, andspreader member 20 may be detached, as a unit therewith to 'permit thepen point 4 and front end of the barrel I to be dipped in ink forfilling of the barrel in the usual manner.

The foregoing will, it is believed, suffice to impart a clearunderstanding of my invention, without further explanation,

Manifestly, the invention, as described, is susceptible of modification,without departin from the inventive concept, and right is hereinrereserved to such modifications as fall within the scope of theappended claims.

What I claim is:

1. A fountain pen comprising a barrel, a reduced neck on the front endof the barrel, a :pen point extending forwardly from said neck, an outercap on the front end of the barrel enclosing said neck and having anopen front end out of which said pen point extends, a tubular spreadermember in the outer cap, an inner cap 'slidable on said spreaderforwardly and rearwardly therein, said inner cap comprising hingedtogether sections swingable into closed relation during forward movementof the inner cap to house said pen point, and being swingable into 4open position during rearward movement of said inner cap to expose saidpen point, said spreader being tapered to swing said sections open during rearward movement of the inner cap, said front end of the outer capactin to swing said sections closed during forward movement of saidinner cap, and manipulative means for moving said inner cap.

2, A fountain pen comprising a barrel, a reduced neck on the front endof the barrel, a pen point extending forwardly from said neck, an

outer cap on the front end of the barrel enclosing said neck and havingan open front end out of which said pen point extends, a tubularspreader member in the outer cap, an inner cap slidable on said spreaderforwardly and rearwardly therein, said inner cap comprising hingedtogether sections swingable into closed relation during forward movementof the inner cap to house said pen point, and being swingable into openposition during rearward movement of said inner cap to expose said penpoint, said spreader being tapered to swing said sections open duringrearward movement of the inner cap, said front end of the outer capacting to swing said sections closed during forward movement of saidinner cap, and manipulative means for moving said inner cap comprising abar endwise movable along said barrel and connected to said inner cap.

3. A fountain pen comprising a barrel, a reduced neck on the front endof the barrel, a pen point extending forwardly from said neck, an outercap on the front end of the barrel enclosing said neck and having anopen front end out of which said pen point extends, a tubular spreadermember in the outer cap, an inner cap slidable on said spreaderforwardly and rearwardly therein, said inner cap comprising hingedtogether sections swingable into closed relation during forward movementof the inner cap to house said pen point, and being swingable into openposition during rearward movement of said inner cap to expose said penpoint, said spreader being tapered to swing said sections open duringrearward movement of the inner cap, said front end of the outer capacting to swing said sections closed during forward movement of saidinner cap, and manipulative means for moving said inner cap comprising aclip-forming bar endwise movable, said bar and outer cap embodyingcoacting devices for locking said bar against endwise movement.

FRED YOSHIHARU KURIYAMA.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 832,981 Kennedy Oct. 9, 19061,717,731 Nikonow June 18, 1929 2,097,160 Lo Curto Oct. 26, 19372,409,847 Gregg Oct. 22, 1946 2,416,112 Moore Feb. 28, 1947 2,435,185Reynolds Jan. 27, 1948

